Improvement in thill-couplings



EDWARD. s. ROBERTS.

Improvement in Thill Couplings.

No. 125,486. u V Patented Apri I9,1872.

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W m g Q 5 git EDWARD S. ROBERTS, OF EAST CANAAN, CONNECTICUT.

IMPROVEMENT IN THlLL-COUPLINGS.

Specification forming part of Letters Patent No. 125,486, dated April 9, 1872.

Specification describing a new and Improved Thin-Coupling, invented by EDWARD S. ROB- ERTS, of East Canaan, in the county of Litchheld and State of Connecticut.

Figure 1 is a top view of my improved thillcoupling. Fig. 2 is a detail view of one side of the same, part being broken away to show the construction. Fig. 3 is a detail view of the other side of the same, part being broken away yoke or bar A. Upon one side of the forward end of the yoke or bar A is formed a rabbet, a to receive a flange, formed upon the side of the thill-iron B. Upon the otherside of the end of the yoke or barA is formed a deep and wide rabbet, ed, to receive a long and wide flange, b formed upon the end of the thill-iron B. The bottom or shoulder of the rabbet a is grooved to form a flange, a to enter a rabbet, b formed upon the outer side of the flange b as shown in Figs. 1, 2, and 3. C is the pin or pivot by which the thill-iron B is pivoted to the bar or yoke A. The pin 0 passes transversely through the overlapping parts of the bar or yoke-A and thill-iron B, as shown in Figs. 1, 2, and 3, and should be pinned or otherwise permanently attached to one of said parts, preferably to the thill-iron B, as shown in Figs. 2 and 3. By this construction the guards or flanges I) a will hold the thills from side movement, and, consequently, from wearing loose and becoming shaky, as they would be liable to without said guards. In a recess formed in the bottom of the groove in one of the parts A B, preferably in the thill-iron B, is placed a rubber block, D, which is compressed when the coupling is coupled, so as to press against the other side of said part, and by its elasticity to take up the wear and prevent all rattling. By this construction the thills cannot become detached when in the working position.

By raising the thills into a vertical position, so as to turn the flanges I) b a out of their respective rabbets a (L b the thills may be moved laterally, uncoupling the coupling and detaching the thills.

By this manner of coupling and uncoupling the pin C will not have to be withdrawn and inserted while the parts are subjected to the pressure of the rubber block D, making the operation of coupling and uncoupling very easy.

Having thus described my invention, I claim as new and desire to secure by Letters Patenti 1. The improved thill-coupling, formed of the parts A and B,provided with the guards b a and a b arranged as shown and described, whereby one of said parts may be readily attached to or detached from the other when adjusted at the proper angle, as specified.

2. The combination of the rubber block D with the coupling A a a a B b b N, substantially as herein shown and described, and for the purpose set forth.

EDWARD S. ROBERTS.

Witnesses:

F. BRONSON, J one: JUNE. 

